select the letter of the position that would be on digram The runner tried "to move very quickly''

There is no specific diagram mentioned in the prompt, so it is not possible to determine which letter corresponds to the position.

The given phrase is "to move very quickly." However, you mentioned a diagram. Could you please provide the diagram or provide more context?

To answer this question, we need to look at the given phrase and find the position of a specific letter in the phrase.

First, let's locate the phrase "to move very quickly" within the sentence. It appears to be a quote as it is inside double quotation marks.

Now, we need to identify the letter's position within the phrase. In this case, we need to find the position of a specific letter, which is not mentioned in the question. Let's assume we are looking for the position of the letter "o" in the phrase "to move very quickly."

To find the position of a letter in a given phrase or word, we typically start counting from left to right, starting with 1. In the phrase, "to move very quickly," we count each character, including spaces and punctuation marks.

Counting from left to right, the positions of the letter "o" are as follows:

Position 1: After the letter "o" in "move"
Position 2: In the word "very"
Position 3: In the word "to"
Position 4: After the letter "o" in "move"
Position 5: After the letter "o" in "move"
Position 6: After the letter "o" in "move"

Now, because the question mentions "select the letter of the position," we need to choose a letter from A to F that corresponds to one of the positions identified above.

Without knowing which specific position the question is referring to, we can't select a letter. However, if you provide the desired position or clarify the question, I can help you further.